function pcRem (){
    let clientWidth = document.documentElement.clientWidth;
    document.getElementsByTagName("body")[0].style.backgroundColor = "none";
    document.getElementsByTagName("body")[0].style.position = "static";
    document.getElementsByTagName("body")[0].style.width = clientWidth + 'px';
    document.getElementsByTagName("body")[0].style.margin = 'auto';
    let ohtml = document.getElementsByTagName('html')[0]
    clientWidth = clientWidth < 1366 ? 1366 : clientWidth
    ohtml.style.fontSize = 100 * clientWidth / 1920 + 'px'
}
pcRem()
window.addEventListener("resize", pcRem)